Question

s of t ll retail outlets across the nation stating that e He obtained profits for the first week in July from 45 stores and found a mean of or the outlets averaged $22,50o. The manager for the store in Topeka questions $23, hypothesis that the population mean is $22,500. 790 with a standard deviation of $12,500. At the 1% level of significance test the 6. The manager for Dudley Construction thinks that on the average time the company can finish a job in not more than 5 days. If a sample of 112 jobs produced a mean of 5.5 days and a standard deviation of 2.3 days, does it seem the manager is correct? Set alpha at 1%. Use the Z-test approach because you will calculate the p-value for this problem in the next problem. Hint: this is a one tailed or a two-tailed test? Is a left tailed test or right tailed test? 7, Calculate and interpret the p-value for the previous problem. Compare this p-value to the alpha value of 1% used in the previous problem. How does that comparison relate to your decision regarding whether or not to reject the null that you stated in the previous problem?

Only 6 and 7

Answer 1